UK / US crochet term:

Chain stitch – ch

Double crochet / Single crochet – dc/sc

Treble / Double crochet – tr / dc

Half tr/ half dc – h.tr / h.dc

Stitch – st

Foundation Chain: Multiples of 11 + 4

Row 1: Skip 1ch, 1dc/sc in next, * 1dc/sc in next ch, 3ch, skip 2ch, 1dc/sc in next, 5ch, skip 4ch, 1dc/sc in next, 3ch, skip 2ch; rep from*, 1dc/sc in each of the next 2 ch, turn.

Row 2: Make 2ch, 1h.tr/h.dc in next dc/sc below, 1ch, * 1dc/sc in space of 3ch, 9tr/dc In space of 5ch, 1dc/sc in space of 3ch, 3ch; rep from*, 1dc/sc in space of 3ch, 9tr/dc In space of 5ch, 1dc/sc in space of 3ch, 1ch, 1h.tr/h.dc in each of the next 2dc/sc below, turn.

Row 3: Make 1ch and 1dc/sc in each of the next 2st below, * 5ch, skip 3tr/dc, 1dc/sc in each of the next 3tr/dc, 5ch, 1dc/sc + 5ch + 1dc/sc in space of 3 ch; rep from*, 5ch, skip 3tr/dc, 1dc/sc in each of the next 3tr/dc, 5ch, 1dc/sc in h,tr/h.dc below, 1dc/sc in 2nd ch, turn.

Row 4: Make 3ch, 1tr/dc in next st, 3ch, * 1dc/sc in space of 5ch, 3ch, 1dc/sc in 2nd dc/sc below, 3ch, 1dc/sc in space of 5ch, 5ch; rep from *, 1dc/sc in space of 5ch, 3ch, 1dc/sc in 2nd dc/sc below, 3ch, 1dc/sc in space of 5ch, 3ch, 1tr/dc in each of the next 2dc/sc below, turn.

Row 5: Make 3ch, 1tr/dc in next st, 4tr/dc in space of 3ch, * 1dc/sc in space of 3ch, 3ch. 1dc/sc in next space of 3ch, 9tr/dc in space of 5ch; rep from*, 1dc/sc in space of 3ch, 3ch. 1dc/sc in next space of 3ch, 4tr/dc in space of 3ch, 1tr/dc in tr/dc below, 1tr/dc in 3rd ch, turn.

Row 6: Make 1ch, 1dc/sc in each of the next 3tr/dc below, * 5ch, 1dc/sc + 5ch + 1dc/sc in space of 3ch, 5ch, skip 3tr/dc, 1dc/sc in each of the next 3tr/dc below; rep from*, work last dc/sc in 3rd ch and turn.

Row 7: Make 1ch, 1dc/sc in each of the next 2st below, * 3ch, 1dc/sc in space of 5ch, 5ch, 1dc/sc in next space of 5ch, 3ch, 1dc/sc in 2nd dc/sc below; rep from*, 1dc/sc in last dc/sc, turn.

Repeat rows 2 – 7 until you have reached your desired length.